Potassium-compound-recovering apparatus.



H. M. HINER.

POTASSIUM COMPOUND RECOVERING APPARATUS.

APPLlcATmN FILED Nov. 1911.

LQQQQ. Patented Jan. 7, 1919.

2 SHEETS-SHEET l.

' H. M. HINER.

POTASSIUNI COMPOUND RECOVERING APPARATUS.

, l APPLICATION FILED NUVl 8,41917. LQQUQQ., Patented Jam 7,1919

2 SHEETS-SHEET Z.

4 Jiffy/ijf# Ky@ i iornron.

HUGH MEBIDITH HINEB, F FORT SMITH, ARKANSAS.`

POTASSIUM-GOMIPOUND-RECOVERING APPARATUS. i

trenta To all whom may concern." j j llBe it known that ll, HUGH Mnnrnrm Hman, a citizen of thelYUnited States, re-

siding at Fort Smitlifin the county ofA Sebastian anc'l'l State of Arkansas, have 'inventedA certain j new and useful llmprovements Potassium-Compound-Recovering Apparatus, of which the/following is a specification.

My invention relates to an apparatus adapted for use in recovering potassium compounds from burned material, and the smoke therefrom.

An important object of the yinvention is to provide apparatus of the above mentioned character, which is simple in construction,

inexpensive to fmanufacture, strong and durable. Y j

Other objects and advantages of the invention will be apparent during the 'course of the following description.

ln the accompanying drawings forming a1 part of this specification and in which like numerals are employed to designate like parts ,throughout the same,

Figure 1 1s a central vertical sectional view through theapparatus embodying the f ae hill

and,

invention,

Fig. 2 is a horizontal sectional view taken on line 2--2 of Fig. l1, l

Fig. 3 is a side elevation of the' apparatus,

Fig. d is a plan view of the same.. ln the drawings, wherein for, the purpose of illustration is shown a preferred embodi ment of myinvention, the numeral 5 designates'a shell constituting the-body portion of the apparatus. This shell is formed of tire brick or other suitable material. Arranged within the lower portion of the shell 5 are spaced horizontal, gra-te bars 6, constituting a support for the material to be burned. Disposed beneath the grate bars 6 is an ash-pit or chamber 7, preferably frustro-conical in cross-section and decreasing in diameter downwardly. 'lhe burned materiah-or ashes is withdrawn from the ash-pit 7 through the opening which is normally closed'by a door 8, shown more clearly in Fig. 3.

l preferably employ a force draft and for this purpose a horizontal air supply pipe 9 leadsinto the ash-pit 7, and has a cap or nozzle 10 arranged slightly above thegrate-bars 6, as shown. The air pipe 9l receives the air from the rotatable fan or blower 11,

specimen@ or ret-ters raient.

tending sprocket chain 13.

- through a 'Patenten aan. t. rara,

Appli-cation led November 8, 191i?. VSerial No. 200,908. A

which is driven by-a sprocket 'wheel 12 re- I ce1v1ng 1ts rotation from an outwardly ex# The' portion off the shell 5 above the grate-bars 6 constitutes a combustion cham ber 14:, preferably having inclined Awalls 15 and 16, as shown. Access is had to the in- -teriorof this chamber through an opening,

normally coveredby afdoor 14', as shown.

Thematerial to be burned, which is finely divided, such as cotton bells, hardwood sawdust, etc., is fed into the upper end of the combustion chamber 14: through a pipe .17,

discharging into an opening 18 passing through the top 19 and discharging into the combustion chamber 14:. Arranged within the pipe'l is a spiral conveyer 20, which is driven by a horizontal shaft 21, having a sprocket wheel 22 secured thereto.l 'llhis sprocket wheel is engaged by the sprocket chain 13 'llhe` smoke or gaseous products of comn bustion, which are rich with potassium compounds, discharge from the upper portion of the combustion chamber 1f into a pipe -or take off conduit23, provided at its opposite end with a down-turned neck 2d.

`This down-turned neck passes through the upper closed end of a water holding tank 25, and is disposed beneath the water level therein. 'llhe water soluble otassium compounds go in solution into t e water while the hotair or gases are freeto escape to the atmosphere through a pipey 26. "f'he fresh water may besupplied to the tank 25 pipe 2T having a cut-'od valve 23 therein.

Connected with the lower end of the tank i 25 is adraw-o' pipe 29 connected with a horizontally arranged steam supply pipe 30. The steam supply pipe 30 projects into the upper portion of the combustion chamber 14, as clearly shown in Fig. 1 and is provided therein with a spray nozzle31. 'lhe pipe 30 has a cut-0H valve 32. llt is obvious that 'the' steam pressure will force or inject the water having the potassium "compounds in solution or suspension therein, into or through the nozzle 31, causing the same to be sprayed into the upper portion of the combustion chamber 14, in proximity to or` in contactwith the wall 15. This sprayed liquid is more or less evaporated before it reaches the bottom of the combustion charnber and therefore does not materially The smoke or gaseous products of combustion pass through the pipe 23 and are delivered into the tank 25, beneath the water level, The soluble potassium compounds in solution or suspension in this water are withdrawn with the water through the pipe 29, and forced or injected by steam passing through the pipe' 30, into the upper portion of the combustion chamber, in a finely divided or sprayed form. This sprayed'liquid descends within the combustion chamber and is more or less evaporated at or before reaching the grate-bars, whereby the finely divided potassium compounds discharge upon the grate-bar and become mixed with the ashes.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims. f f J Having thus described my invention, I claim:

1. In apparatus for recovering potassium compounds, a main shell including a combustion chamber and an ash-pit arranged therebelow, means to feed material "to be burned into the combustion chamber, a water holding tank, a smoke takec off pipe having communication with the combustion chamber and discharging into the water holding tank, and means for withdrawing the water communication with the combustion chamber and discharging into the water holding tank, a discharge conduit connected with the tank, and a steam supply pipe having connection with the discharge conduit and extending into the combustion chamber and provided with means to spray the liquid therein.

3. In apparatus for recovering potassium compounds, a main shell having a combustion chamber, means whereby the ashes may be withdrawn from the shell, means to feed material into the combustion chamber, a water holding tank, a smoke take off pipe having communication with the combustion chamber and discharging intothe tank, a steam supply pipe extending into the upper end of the combustion chamber, and an outlet conduit connected with the tank and connected with the steam supply pipe.

4. In apparatus for recovering potassium compounds, a main shell having a combustion chamber, a conveyer for fuel discharging into the upper end of the combustion chamber, a smoke take off pipe leading into the top of the combustion chamber, a water holding tank receiving therein one end of 4the smoke take off pipes, an outlet pipe connected with the tank and discharging into the upper end of the combustion chamber, and a force draft device for supplyingair into the lower end of the combustion chamber.

In testimony whereof I aiix my signature in presence of two witnesses.

` HUGH MERIDITH HINER.

Witnesses:

CHAs. E. WINTERS, B. L. ALLEN. 

